Francois nicolas santenard



(No Model.)

I'. N. SANTENARD. LUBRIGATOR.

No. 429,155. Patented June 3, 1890.

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UNITED STATES PATENT OEEICE.

ERANcoIs NIcoLAs sANTENARD, on PARIS, FRANCE.

LU BRICA'TOR.

SPECFICATION forming part of Letters Patent No. 429,155, dated J' une S, 1890.

Application tiled February 18, 1890. Serial No. 340,928. (No model.) Patented in France September 4, 1889,No. 200,561, and in England December 23, 1889, No. 20,675.

To all whom t may concern:

Be it kno'wn that I, FRANQOIS NICOLAS SANTENARD, a citizen of the Republic of France, residing at Paris, 15 Rue de Richelieu, in the Republic of France, have invented certain new and useful Improvements in Lubricators, (for which I have made application for Letters Patent of Great Britain, No. 20,67 5, dated December 23, 1889, and have obtained Letters Patent of France, No. 200,561, dated September 4.,1S89,) of which the following is a specification.

This invention relates to improvements in apparatus f'or lubricating ordinary inechanical contrivances, and also apparatus subj ected to more or less pressure by direct local application or by application from a distance, by means of iluid under pressure operating upon a suitable arrangement of pistons of different areas, and which are herein termed diiterential pistons.

The accompanying drawings represent a lubricator constructed according to this invention, and in both figures of which the same letters refer to the same parts.

Figure 1 is a transverse vertical section of the lubricator showing the arrangement of the different parts in its interior. Fig. 2 is a plan of the same.

This lubricator can be applied directly to any part which requires lubricating', or it can be arranged to lubricate from a distance suchportions of machinery as may be subjected to atmospheric or other and higher pressure.

This lubricator consists of a cylinder a, of brass or other suitable metal, and which is bored out smoothly at its inner part, into which is placed the hollow piston h, which is provided with a liange c, and which piston is of such dimension as maybe requisite for the necessary pressure to be applied upon the lubricated part at a distance, or to lubricate mechanical contrivances which are subjected to a high pressure. This piston b appears as an open cylinder when seen from above. The bottom of the piston h is provided with a threaded opening h', into which screws a plug e, having a iiange h3, upon which latter v rests a plate b4, between which latter and the bottom of the pistou b a packing-ring d is confined. By screwing up the plug e the packing-ring will be held closely against the bottom of the piston and prevent passage of the motive 'Huid between lthe latter and the cylinder a. On the said lower part of the hollow piston b the steam, compressed air, water, or other motive agent employed will operate and push the same upward in the cylinder a. The hollow piston b is bored out smoothly at its inner part and slides over the stationary piston f, which is of greaterlength than the stroke of the moving piston h.

The piston f, it will be understood, should be rigidly held in position within the fraineg, and this may be accomplished by any suitable ineans-as, 'for instance, by means of arms f2, which may be formed integral with the frame C, as shown, or secured in any suitable manner to said frame g, which latter may be bolted to the upper flange of the cylinder a or formed integral therewith.

f4 are arms suitably secured to the cylinder a, and which serve to guide the piston b in its reciprocating movements.

To prevent passage of any of the lubricant between 4the pistons h f when the former is being raised, the piston f is provided With a central opening, into which tightly' fits a ring or plug c', having a flange e2, between which Iiange and the flange f3 of the piston f a packiiig-ring d is placed, the ring c thus serving to support the packing-ring d and hold the same tightly to its place.

Vithin the piston f is arranged a vertical tube 7L', (of which there may be several the lower end of which is threaded and passes through a threaded opening in the ring e. The passage h of the tube h communicates at its lower end with the interior of the piston l) and at its upper end with the chamber k, which may be secured to the frame g above the piston f. Upon this chamber 7c is placed the funnel m, closed by the cover Z, which is suitably secured to the edge of the said funnel; and after the removal of such cover the lubricant maybe charged into the interior of the piston h through the chamberk and opening h when it is required to lill the apparatus. Upon each side of the chamber 7c, and coniinunicating with the interior thereof, is arranged a easing or tube u, which I denominat-e the distributi11g-tube, and with each ot these tubes is connected a pipes, which leads to the device to be lubricated. Each of the screw-threaded valve-spindles o, working in the nut r, arranged in each tube n, may be operated by the hand-wheel q. The said rods o, through the valves p, regulate the effective area ot' the openings p,and thereby regulate the amount of lubricant discharged from the tubes n by varying the size of the dischargeopenings 1) thereof. The number of tubes n. connecting with the chamber 7c may of course be varied.

To the lower portion of the cylinder a is screwed a cock r, the bore of which connnunieates at one end with the passage u, formed in the cylinder a., and is adapt-ed to receive through its other end the supply of the motive tluid, such as steam, compressed air, water, tbe. The passage u also communicates with the space beneath the piston The cock u is provided with a three-way plug or valve r', which controls the supply of iiuid admitted to the piston b. The steam, compressed air,or water enters by the opening u of the cock vr, and passing through the passage u enters the cylinder a and operates upon the piston b so as to raise it, and thereby force out from within l) and through 7L to the chamber k the lubricant stored in l). The lubricant passes from the chamber kthrough the distributing-tubes n, and is conducted to the parts which are to be lubricated, no matter at what distance they may be from the apparatus before described.

i The fluid or condensed water contained in the cylinder a when the piston l) contains no more lubricating Substance may be drawn off, when the piston Z) is being filled, by means of the channel t of the stop-cock fr. To move the piston b back to its original position the lubricant is driven into it by means of a handpump, which may be screwed upon the funnel m after the lid or cover has been taken off. The condensed liquid from the cylinder a escapes through the channel of the stop-cock Ir in the same proportion as the filling ot' the piston l) is effected.

To ascertain the quantity of lubricant,a suitable gage or other indicating' device may be employed for the purpose of indicating the quantity of lubricant discharged at each npward movement of the piston Z), said indicating device being suitably attached to the said piston.

l claiml. In alubrieator ofthe characterdescribed, the combination, with a stationary cylinder, 'a movable piston fitted and adapted to be moved within said cylinder, a stationary piston over which said movable piston is fitted and adapted to slide, said movable piston being adapted to contain a quantity of lubricant, a pipe or tube communicating at one end with the interior of the movable piston, a chamber located above the stationary piston and having communication with theot-her end of the said tube, and a distributing tube or easing communicating with the said chamber, of means for admitting a fiuid under pressure beneath the movable piston to raise the same, for the purpose specified.

2. In alubrieator of the character described, the combination, with a stationary cylinder, a movable piston fitted and adapted to be moved within said cylinder, a stationary piston over which said movable piston is fitted and adapted to slide, said movable piston being adapted to contain a quantity of lubricant, a pipe or tube communicating at one end with the interior ot the movable piston, a chamber located above the stationary piston and having communication with the other end of the said tube and being provided with a feed aperture or opening for supplying lubricant to the interior of the movable piston, and a distributing tube or casing communicating with the said chamber, of means for supplying a fluid under pressure beneath the movable piston to raise the same, for the purpose specified.

El. In a lubrieator of the character described, the combination, with a stationary cylinder, a movable piston fitted and adapted to be moved within said cylinder, a stationary piston over which said movable piston is fitted and adapted to slide, said movable piston being adapted to contain a quantity of lubricant, a pipe or tube communicating at one end with the interiorof the movable piston, a chamber located above the stationary piston and having communication with the other end of the said tube, a distributing tube or casing communicating with the said chamber and having a discharge-opening for the tluid, and a regulating device carried by the distributing-tube and adapted to vary the quantity ot lubricant discharged through said opening, ot' means for admitting a fluid under pressure beneath the movable piston to raise the same, for the purpose specified.

In testimony whereof I have hereto set my hand, in the presence of two subscribing witnesses, this 4th day of: J auuary, 1890.

FRANQOIS NICOLAS SANIENARD.

Witnesses;

ALBERT MAULVAULT, R. J. PRESTON.

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